Note: An earlier source gave John's birth date as 29 September 1875 making the youngest child. However, this is not consistent with his marriage to Constance Hawke born 1868.
Publication: http://trove.nla.gov.au Citation Details: http://trove.nla.gov.au/ndp/del/article/54497491 Text: MILLS-HAWKE-On tbe 14th June, at Wesley Church, Freuantle, by tbe Rev. A. J. Barclay, John Mills of Fremantle, W. A., to Constance Evelyn, second daughter of N. Hawke , of Exeter. S.A.